Minimum number of points for a reliable soil water retention curve using Richards’ pressure chamber
DOI:
https://doi.org/10.13083/reveng.v29i1.7320Keywords:
irrigation management, soil physics, soil moistureAbstract
The soil hydro-physical characteristics are very important for studies about soil water dynamics. The soil water retention curve it is a soil characteristic sometimes expensive and time consuming to be done and could be a problem for farmers. The numbers of points and its tension evaluated are normally choose arbitrarily. This study aimed to define the fewest pairs of soil moisture and water soil potential points which result in a reliable water retention curve in two different soils (sandy and clay). Using different tensions by suction table and Richards’ pressure chamber, nine replications were adjusted by van Genuchten's equation. Curves with 4, 5, 7, 8, 9, 10 and 13 points were studied and the curve with 13 points was adopted as standard. The obtained parameters for different pairs of soil moisture and their corresponding soil water potential were compared to the equivalent standard curve and submitted to analysis of variance (F test), and their values were compared by the Scott-Knott test (5% of probability). The curve with 7 points, using the tensions of 0; 40; 100; 300; 1,000; 5,000 e 15,000 hPa, was the lower number of points that did not showed statistical difference in any parameters of the model and the point with 15,000 hPa shown to be important and should be used on the combination of points to obtain a good adjustment.
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BLAINSKI, É.; TORMENA, C.A.; FIDALSKI, J.; GUIMARÃES, R.M.L. Quantifying soil physical degradation through the soil penetration resistance curve. Revista Brasileira de Ciência do Solo v.32, n.3,p.975-983, 2008.
CAMARGO, A.; SENTELHAS, P.C. Avaliação do desempenho de diferentes métodos de estimativa da evapotranspiração potencial no Estado de São Paulo, Brasil. Revista Brasileira de Agrometeorologia. v.5, n.1, p.89-97, 1997.
CARVALHO, J.M. DE; LIMA, L.A. Influência da adição de hidróxido de sódio na retenção de água de um latossolo vermelho-escuro. Ciência e Agrotecnologia. v.24, n.2, p.450,457, 2000.
DEXTER, A.R.; CZY?, E.A.; GA?E, O.P. A method for prediction of soil penetration resistance. Soil Tillage Res. v.93, n.2, p.412-419, 2007.
EMBRAPA. Manual de métodos de análise de solo. Rio Janeiro: Embrapa Solos, 1997.
GEROY, I.J.; GRIBB, M.M.; MARSHALL, H.P.; CHANDLER, D.G.; BENNER, S.G.; MCNAMARA, J.P. Aspect influences on soil water retention and storage. Hydrol. Process. v.25, n.25, 2011.
GREGO, C.R.; VIEIRA, S.R. Spatial variability of soil physical properties on an experimental plot. Revista Brasileira de Ciência doSolo. v.29, n.2, 169-177, 2005.
HODNETT, M.G.; TOMASELLA, J. Marked differences between van Genuchten soil water-retention parameters for temperate and tropical soils: a new water-retention pedo-transfer functions developed for tropical soils. Geoderma. v.108, n.3, p.155-180, 2002.
JORGE, R.F.; CORÁ, J.E.; BARBOSA, J.C. Número Mínimo De Tensões Para Determinação Da Curva Característica De Retenção De Água De Um Latossolo Vermelho Eutrófico Sob Sistema De Semeadura Direta. Revista Brasileira de Ciência do Solo. v.31, n.6, p.1831-1840, 2010.
MACHADO, J.L.; TORMENA, C.A.; FIDALSKI, J.; SCAPIM, C.A. Inter-relationships between physical properties and the coefficients of soil water retention curve in an oxisol under different soil use. Revista Brasileira de Ciência do Solo. v.32, n.2, p.495-502, 2008.
MARTINEZ, M.; TIMM, L.; MARTINS, J.; FERREIRA, P. Efeito da textura do solo sobre os parametros de alguns modelos matematicos usados para estimar a curva de retencao de agua no solo. Revista Engenharia na Agricultura. v.4, p.1-9, 1995.
PIMENTEL-GOMES, F. Curso de estatística experimental. São Paulo: Nobel, 1990.
REEVE, M.J.; SMITH, P.D.; THOMASSON, J. The Effect of Density on Water Retention Properties of Field Soils. J. Soil Sci. v.24, n.3, p.355-367, 1973.
RICHARDS, L. Physical condition of water in soil. Methods of soil analysis: physical and mineralogical properties, including statistics of measurements and sampling. Madison: American Society of Agronomy, 1965.
SALTER, P.J.; BERRY, G.; WILLIAMS, J.B. The Influence of Texture on the Moisture Characteristics of Soils. J. Soil Sci. v.17, p.93-98, 1966.
SEVERIANO, E. C.; CÉSAR DE OLIVEIRA, G.; JUNIOR, M. DE S.D.; CURI, N.; COSTA, K.A. DE P.; CARDUCCI, C.E. Preconsolidation pressure, soil water retention characteristics, and texture of Latosols in the Brazilian Cerrado. Soil Res. v.51, n.3, 193-202, 2013.
SHARMA, M.L.; UEHARA, G. Influence of Soil Structure on Water Relations in Low Humic Latosols: I. Water Retention1. Soil Sci. Soc. Am. J. v.32, n.6, p.765, 1968.
SILVA, Á.P. DA; TORMENA, C.A.; FIDALSKI, J.; IMHOFF, S. Pedotransfer functions for the soil water retention and soil resistance to penetration curves. Revista Brasileira de Ciência do Solo. v.32, n.1, p.1-10, 2008.
SILVA, E.M. DA; LIMA, J.E.F.W.; AZEVEDO, J.A. DE; RODRIGUES, L.N. Valores de tensão na determinação da curva de retenção de água de solos do Cerrado. Pesquisa Agropecuária Brasileira. v.41, n.2, p.323-330, 2006.
TORMENA, C.A.; SILVA, Á.P.; IMHOFF, S.D.C.; DEXTER, A.R. Quantification of the soil physical quality of a tropical oxisol using the S index. Sci. Agric. v.65, n.1, p.56-60, 2008.
VAN GENUCHTEN, M.T.; LEIJ, F.; YATES, S. The RETC code for quantifying the hydraulic functions of unsaturated soils. Citeseer, 1991.
WILLMOTT, C.J.; ACKLESON, S.G.; DAVIS, R.E.; FEDDEMA, J.J.; KLINK, K.M.; LEGATES, D.R.; O’DONNELL, J.; ROWE, C.M. Statistics for the evaluation and comparison of models. J. Geophys. Res. v.90, n.5, p.89-95, 1985.
YANG, X.; YOU, X. Estimating Parameters of Van Genuchten Model for Soil Water Retention Curve by Intelligent Algorithms. Appl. Math. Inf. Sci. v.7, n.5, p.1977-1983, 2013.
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